Chemical-mixing fire-extinguisher system.



R. L COO NEY.

CHEMICAL MIXING FIRE EXTINGUISHER SYSTEM.

APPLICATION FILED JUNE 15, 1910. RENEWED JULY so, 1913.

Patented Oct. 7, 1913.

-?lllllllll ROBERT L. COONEY, 0F ATLANTA, GEORGIA.

CHEMICAL-MIXING FIRE-EXTING-UISHER SYSTEM.

' Application filed June 1-5, 1910, Serial No.

To all whom it may concern:

Be it known that I, ROBERT L. COONEY, a citizen of the United States,residing at Atlanta, in the county of Fulton and State of Georgia, haveinvented new and useful Improvements in Chemical-MixingFire-Extinguisher Systems, of which the following is a specification.

This invention relates to improvements in stationary chemical mixingfire extinguisher systems.

The invention proposes a mechanically controlled and operated system,the essential characteristics of which are extreme simplicity both as toconstruction and operation; the relation of the mechanically operatedparts to the door of the hose cabinet whereby the opening of said doorfor the purpose of withdrawing the hose from the cabinet produces theoperation of the system; and an arrangement in which packed joints aredispensed with and in which provision is made for preventing the escapeof gas from the tank during the operation of the system.

An embodiment of the invention is illustrated in the accompanyingdrawings, wherein Figure 1 is a diagram partly in longitudinal section,showing a system in accordance with the present invention; Fig. 2 is atop plan view of the hose cabinet; and Fig. 3 is a horizontal sectionalview of the acid bottle.

' Similar characters of reference deslgnate corresponding partsthroughout the several views. i

The essential elements of the system are, as usual, a tank, as 1, tocontain solution, an acid bottle, as 2, to discharge its. contents intothe body of the solution and a distributing pipe, as 3, which leads fromthe tank and which is provided with branches to supply the various roomsor parts of the building to be protected. Such a branch is shown at 4 inFig. 1 and is connected to a flexible hose, as 5, the latter beinginclosed in a cabinet, as 6, having a hinged door, as 7.

In the embodiment shown, the acid discharging operation results from theoverturning of the acid bottle, the latter being pivotally mounted oilcenter. The discharging operation is normally prevented by a latchwhich, in the present instance, holds the acid bottle in an uprightposition. This latch comprises a stem, as 8, which is slidable axiallythrough a gland or sleeve, as 9,

Specification oi Letters Patent.

567,051. Renewed July 30, 1913. Serial No. 782,139.

Patented Oct. '7, 1913'.

fitted in any suitable manner in the upper side of the tank 1 and havingthe inner end of its bore of flaring outline with a ground surface. Theinn-J end portion of the stem 8 is of frusto-conical outline, as at 10,and

is formed and proportioned to conformably fit in the flaring mouth ofthe bore of the gland 9. This fru-sto-conical portionlO has a groundsurface which coaets with the groundsu'rface of the flaring mouth of thebore of the gland 9,- to provide for a gastight sealing engagement ofthe parts during the operation ofthe system. The stem 8 retains itsnormal operative position by gravity and is held against downwarddisplacesheave 15 and has its other end connected to a sheave sector 16,which is mounted on the door-7. It will be apparent that when the door 7is opened, as at the time of afire, for the purpose of removing the hosefrom the cabinet, the sector 16 is turned and the cord 14 is pulled soas to litt the latch stem out of engagement with the arm 12 and topermit the acid bottle to overturn. Thereupon the operation of thesystem proceeds and the developed high pressure serves to hold the latchstem in its uppermost position, the ground surfaces aforesaidestablishing a sealed joint which prevents the escape of such pressurethrough the door of the gland. The arm 12 is curved in order that, whendesired, it may lie concentrically against the acid bottle, as shown inFig. 3. Said arm will be so disposed when the acid bottle is beingremoved from the tank and replaced thereinto.

Having fully described my invention, I claim:

1. A stationary fire extinguisher system consisting of a tank containingsolution, an acid bottle pivotally mounted in the tank and rranged tooverturn by? gravity. a gland titted in the tank and having a flaringbore, and means for normally preventing the discharging operation of theacid bottle and including a stem slidable axially of the l gland, thestem resting. by gravity in a engagement by normal position and havin afrusto-conical ortion to conformably t in the flaring ore, the surfacesof the frusto-conical portion and of the flaring bore being ground toprovide a gas-tight seal against the escape of pressure when the stem is.in its retracted position, and an arm pivoted onthe acid bottle forhorizontal swinging movement and havin its free end formed for e stem.

2. Astationary fire extinguisher system of a tank containing solution,an

I COIiSiStlIlgl acid bott e arranged to dischar e its contents into thetank a'gland fitted 1n the tank and having a flaring bore, means fornormally preventing the discharging operation of the acid bottle andincluding a stem slidable axially of the gland, the stem resting bygravity in a normalposition, and having a. frusto-conical portion tocomformably fit in the flarin bore, the surfaces of the frustoconicalportlon and of the flaring bore being ground to provide a gas-tight sealagainst the esca e of ressure when the stem is in its retracte posltion,a distributin pipe leading from the tank, a hose couple to the dis-'tents into the tank, a latch stem for gov-' erning the dischargingoperation of the acid bottle, a distributing pipe leading from the tank,ahose coupled to the distributing pipe, a cabinet inclosing the hose andhaving a normally closed door, and a cord having an end connected to thelatch stem and an end associated with the door whereby movement of thelatter to its openposition pulls the cord and retracts the stem.

In testimony whereof I have hereunto set my hand in presence of twosubscribing wit nesses.

' ROBERT L. oooNEr.

Witnesses:

H. B. SPENCER, Jr., I H. L. D na. 1 1

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. 0. v

